support cachecrls=yes
[strongswan.git] / src / libcrypto / perlasm / x86unix.pl
1 #!/usr/bin/perl
2
3 package x86unix;
4
5 $label="L000";
6
7 $align=($main::aout)?"4":"16";
8 $under=($main::aout)?"_":"";
9 $com_start=($main::sol)?"/":"#";
10
11 sub main::asm_init_output { @out=(); }
12 sub main::asm_get_output { return(@out); }
13 sub main::get_labels { return(@labels); }
14 sub main::external_label { push(@labels,@_); }
15
16 if ($main::cpp)
17 {
18 $align="ALIGN";
19 $under="";
20 $com_start='/*';
21 $com_end='*/';
22 }
23
24 %lb=( 'eax', '%al',
25 'ebx', '%bl',
26 'ecx', '%cl',
27 'edx', '%dl',
28 'ax', '%al',
29 'bx', '%bl',
30 'cx', '%cl',
31 'dx', '%dl',
32 );
33
34 %hb=( 'eax', '%ah',
35 'ebx', '%bh',
36 'ecx', '%ch',
37 'edx', '%dh',
38 'ax', '%ah',
39 'bx', '%bh',
40 'cx', '%ch',
41 'dx', '%dh',
42 );
43
44 %regs=( 'eax', '%eax',
45 'ebx', '%ebx',
46 'ecx', '%ecx',
47 'edx', '%edx',
48 'esi', '%esi',
49 'edi', '%edi',
50 'ebp', '%ebp',
51 'esp', '%esp',
52 'mm0', '%mm0',
53 'mm1', '%mm1',
54 );
55
56 %reg_val=(
57 'eax', 0x00,
58 'ebx', 0x03,
59 'ecx', 0x01,
60 'edx', 0x02,
61 'esi', 0x06,
62 'edi', 0x07,
63 'ebp', 0x05,
64 'esp', 0x04,
65 );
66
67 sub main::LB
68 {
69 (defined($lb{$_[0]})) || die "$_[0] does not have a 'low byte'\n";
70 return($lb{$_[0]});
71 }
72
73 sub main::HB
74 {
75 (defined($hb{$_[0]})) || die "$_[0] does not have a 'high byte'\n";
76 return($hb{$_[0]});
77 }
78
79 sub main::DWP
80 {
81 local($addr,$reg1,$reg2,$idx)=@_;
82
83 $ret="";
84 $addr =~ s/(^|[+ \t])([A-Za-z_]+[A-Za-z0-9_]+)($|[+ \t])/$1$under$2$3/;
85 $reg1="$regs{$reg1}" if defined($regs{$reg1});
86 $reg2="$regs{$reg2}" if defined($regs{$reg2});
87 $ret.=$addr if ($addr ne "") && ($addr ne 0);
88 if ($reg2 ne "")
89 {
90 if($idx ne "")
91 { $ret.="($reg1,$reg2,$idx)"; }
92 else
93 { $ret.="($reg1,$reg2)"; }
94 }
95 else
96 { $ret.="($reg1)" }
97 return($ret);
98 }
99
100 sub main::BP
101 {
102 return(&main::DWP(@_));
103 }
104
105 sub main::BC
106 {
107 return @_;
108 }
109
110 sub main::DWC
111 {
112 return @_;
113 }
114
115 #sub main::BP
116 # {
117 # local($addr,$reg1,$reg2,$idx)=@_;
118 #
119 # $ret="";
120 #
121 # $addr =~ s/(^|[+ \t])([A-Za-z_]+)($|[+ \t])/$1$under$2$3/;
122 # $reg1="$regs{$reg1}" if defined($regs{$reg1});
123 # $reg2="$regs{$reg2}" if defined($regs{$reg2});
124 # $ret.=$addr if ($addr ne "") && ($addr ne 0);
125 # if ($reg2 ne "")
126 # { $ret.="($reg1,$reg2,$idx)"; }
127 # else
128 # { $ret.="($reg1)" }
129 # return($ret);
130 # }
131
132 sub main::mov { &out2("movl",@_); }
133 sub main::movb { &out2("movb",@_); }
134 sub main::and { &out2("andl",@_); }
135 sub main::or { &out2("orl",@_); }
136 sub main::shl { &out2("sall",@_); }
137 sub main::shr { &out2("shrl",@_); }
138 sub main::xor { &out2("xorl",@_); }
139 sub main::xorb { &out2("xorb",@_); }
140 sub main::add { &out2("addl",@_); }
141 sub main::adc { &out2("adcl",@_); }
142 sub main::sub { &out2("subl",@_); }
143 sub main::rotl { &out2("roll",@_); }
144 sub main::rotr { &out2("rorl",@_); }
145 sub main::exch { &out2("xchg",@_); }
146 sub main::cmp { &out2("cmpl",@_); }
147 sub main::lea { &out2("leal",@_); }
148 sub main::mul { &out1("mull",@_); }
149 sub main::div { &out1("divl",@_); }
150 sub main::jmp { &out1("jmp",@_); }
151 sub main::jmp_ptr { &out1p("jmp",@_); }
152 sub main::je { &out1("je",@_); }
153 sub main::jle { &out1("jle",@_); }
154 sub main::jne { &out1("jne",@_); }
155 sub main::jnz { &out1("jnz",@_); }
156 sub main::jz { &out1("jz",@_); }
157 sub main::jge { &out1("jge",@_); }
158 sub main::jl { &out1("jl",@_); }
159 sub main::jb { &out1("jb",@_); }
160 sub main::jc { &out1("jc",@_); }
161 sub main::jnc { &out1("jnc",@_); }
162 sub main::jno { &out1("jno",@_); }
163 sub main::dec { &out1("decl",@_); }
164 sub main::inc { &out1("incl",@_); }
165 sub main::push { &out1("pushl",@_); $stack+=4; }
166 sub main::pop { &out1("popl",@_); $stack-=4; }
167 sub main::not { &out1("notl",@_); }
168 sub main::call { &out1("call",$under.$_[0]); }
169 sub main::ret { &out0("ret"); }
170 sub main::nop { &out0("nop"); }
171
172 # The bswapl instruction is new for the 486. Emulate if i386.
173 sub main::bswap
174 {
175 if ($main::i386)
176 {
177 &main::comment("bswapl @_");
178 &main::exch(main::HB(@_),main::LB(@_));
179 &main::rotr(@_,16);
180 &main::exch(main::HB(@_),main::LB(@_));
181 }
182 else
183 {
184 &out1("bswapl",@_);
185 }
186 }
187
188 sub out2
189 {
190 local($name,$p1,$p2)=@_;
191 local($l,$ll,$t);
192 local(%special)=( "roll",0xD1C0,"rorl",0xD1C8,
193 "rcll",0xD1D0,"rcrl",0xD1D8,
194 "shll",0xD1E0,"shrl",0xD1E8,
195 "sarl",0xD1F8);
196
197 if ((defined($special{$name})) && defined($regs{$p1}) && ($p2 == 1))
198 {
199 $op=$special{$name}|$reg_val{$p1};
200 $tmp1=sprintf(".byte %d\n",($op>>8)&0xff);
201 $tmp2=sprintf(".byte %d\t",$op &0xff);
202 push(@out,$tmp1);
203 push(@out,$tmp2);
204
205 $p2=&conv($p2);
206 $p1=&conv($p1);
207 &main::comment("$name $p2 $p1");
208 return;
209 }
210
211 push(@out,"\t$name\t");
212 $t=&conv($p2).",";
213 $l=length($t);
214 push(@out,$t);
215 $ll=4-($l+9)/8;
216 $tmp1=sprintf("\t" x $ll);
217 push(@out,$tmp1);
218 push(@out,&conv($p1)."\n");
219 }
220
221 sub out1
222 {
223 local($name,$p1)=@_;
224 local($l,$t);
225 local(%special)=("bswapl",0x0FC8);
226
227 if ((defined($special{$name})) && defined($regs{$p1}))
228 {
229 $op=$special{$name}|$reg_val{$p1};
230 $tmp1=sprintf(".byte %d\n",($op>>8)&0xff);
231 $tmp2=sprintf(".byte %d\t",$op &0xff);
232 push(@out,$tmp1);
233 push(@out,$tmp2);
234
235 $p2=&conv($p2);
236 $p1=&conv($p1);
237 &main::comment("$name $p2 $p1");
238 return;
239 }
240
241 push(@out,"\t$name\t".&conv($p1)."\n");
242 }
243
244 sub out1p
245 {
246 local($name,$p1)=@_;
247 local($l,$t);
248
249 push(@out,"\t$name\t*".&conv($p1)."\n");
250 }
251
252 sub out0
253 {
254 push(@out,"\t$_[0]\n");
255 }
256
257 sub conv
258 {
259 local($p)=@_;
260
261 # $p =~ s/0x([0-9A-Fa-f]+)/0$1h/;
262
263 $p=$regs{$p} if (defined($regs{$p}));
264
265 $p =~ s/^(-{0,1}[0-9A-Fa-f]+)$/\$$1/;
266 $p =~ s/^(0x[0-9A-Fa-f]+)$/\$$1/;
267 return $p;
268 }
269
270 sub main::file
271 {
272 local($file)=@_;
273
274 local($tmp)=<<"EOF";
275 .file "$file.s"
276 .version "01.01"
277 EOF
278 # Removed the next line from previous infile
279 #gcc2_compiled.:
280 push(@out,$tmp);
281 }
282
283 sub main::function_begin
284 {
285 local($func)=@_;
286
287 &main::external_label($func);
288 $func=$under.$func;
289
290 local($tmp)=<<"EOF";
291 .text
292 .align $align
293 .globl $func
294 EOF
295 push(@out,$tmp);
296 if ($main::cpp)
297 { $tmp=push(@out,"\tTYPE($func,\@function)\n"); }
298 elsif ($main::gaswin)
299 { $tmp=push(@out,"\t.def\t$func;\t.scl\t2;\t.type\t32;\t.endef\n"); }
300 else { $tmp=push(@out,"\t.type\t$func,\@function\n"); }
301 push(@out,"$func:\n");
302 $tmp=<<"EOF";
303 pushl %ebp
304 pushl %ebx
305 pushl %esi
306 pushl %edi
307
308 EOF
309 push(@out,$tmp);
310 $stack=20;
311 }
312
313 sub main::function_begin_B
314 {
315 local($func,$extra)=@_;
316
317 &main::external_label($func);
318 $func=$under.$func;
319
320 local($tmp)=<<"EOF";
321 .text
322 .align $align
323 .globl $func
324 EOF
325 push(@out,$tmp);
326 if ($main::cpp)
327 { push(@out,"\tTYPE($func,\@function)\n"); }
328 elsif ($main::gaswin)
329 { $tmp=push(@out,"\t.def\t$func;\t.scl\t2;\t.type\t32;\t.endef\n"); }
330 else { push(@out,"\t.type $func,\@function\n"); }
331 push(@out,"$func:\n");
332 $stack=4;
333 }
334
335 sub main::function_end
336 {
337 local($func)=@_;
338
339 $func=$under.$func;
340
341 local($tmp)=<<"EOF";
342 popl %edi
343 popl %esi
344 popl %ebx
345 popl %ebp
346 ret
347 .${func}_end:
348 EOF
349 push(@out,$tmp);
350 if ($main::cpp)
351 { push(@out,"\tSIZE($func,.${func}_end-$func)\n"); }
352 elsif ($main::gaswin)
353 { $tmp=push(@out,"\t.align 4\n"); }
354 else { push(@out,"\t.size\t$func,.${func}_end-$func\n"); }
355 push(@out,".ident \"$func\"\n");
356 $stack=0;
357 %label=();
358 }
359
360 sub main::function_end_A
361 {
362 local($func)=@_;
363
364 local($tmp)=<<"EOF";
365 popl %edi
366 popl %esi
367 popl %ebx
368 popl %ebp
369 ret
370 EOF
371 push(@out,$tmp);
372 }
373
374 sub main::function_end_B
375 {
376 local($func)=@_;
377
378 $func=$under.$func;
379
380 push(@out,".L_${func}_end:\n");
381 if ($main::cpp)
382 { push(@out,"\tSIZE($func,.L_${func}_end-$func)\n"); }
383 elsif ($main::gaswin)
384 { push(@out,"\t.align 4\n"); }
385 else { push(@out,"\t.size\t$func,.L_${func}_end-$func\n"); }
386 push(@out,".ident \"desasm.pl\"\n");
387 $stack=0;
388 %label=();
389 }
390
391 sub main::wparam
392 {
393 local($num)=@_;
394
395 return(&main::DWP($stack+$num*4,"esp","",0));
396 }
397
398 sub main::stack_push
399 {
400 local($num)=@_;
401 $stack+=$num*4;
402 &main::sub("esp",$num*4);
403 }
404
405 sub main::stack_pop
406 {
407 local($num)=@_;
408 $stack-=$num*4;
409 &main::add("esp",$num*4);
410 }
411
412 sub main::swtmp
413 {
414 return(&main::DWP($_[0]*4,"esp","",0));
415 }
416
417 # Should use swtmp, which is above esp. Linix can trash the stack above esp
418 #sub main::wtmp
419 # {
420 # local($num)=@_;
421 #
422 # return(&main::DWP(-($num+1)*4,"esp","",0));
423 # }
424
425 sub main::comment
426 {
427 foreach (@_)
428 {
429 if (/^\s*$/)
430 { push(@out,"\n"); }
431 else
432 { push(@out,"\t$com_start $_ $com_end\n"); }
433 }
434 }
435
436 sub main::label
437 {
438 if (!defined($label{$_[0]}))
439 {
440 $label{$_[0]}=".${label}${_[0]}";
441 $label++;
442 }
443 return($label{$_[0]});
444 }
445
446 sub main::set_label
447 {
448 if (!defined($label{$_[0]}))
449 {
450 $label{$_[0]}=".${label}${_[0]}";
451 $label++;
452 }
453 push(@out,".align $align\n") if ($_[1] != 0);
454 push(@out,"$label{$_[0]}:\n");
455 }
456
457 sub main::file_end
458 {
459 }
460
461 sub main::data_word
462 {
463 push(@out,"\t.long $_[0]\n");
464 }
465
466 ##
467 ## Additional functions required for MMX and other ops
468 ##
469 sub main::testb { &out2('testb', @_) }
470 sub main::movzx { &out2('movzx', @_) }
471 sub main::movd { &out2('movd', @_) }
472 sub main::emms { &out0('emms', @_) }